Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET2008IMPALA V6-3.5LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINESERVICE AND REPAIROVERHAULREPAIR INSTRUCTIONS53. CYLINDER HEAD DISASSEMBLE
2008 Chevrolet Impala V6-3.5L
53. Cylinder Head Disassemble
2008 Chevrolet Impala V6-3.5LSECTION 53. Cylinder Head Disassemble
Cylinder Head Disassemble
Tools Required
* EN-47823 Valve Spring Compressor Adapter
* J 5892-D Valve Spring Compressor
1. Remove the heater inlet pipe stud from the right cylinder head, if required.
2. Remove the coolant temperature sensor from the right cylinder head, if required.
3. Using caution so as not to damage the valve spring or valve spring dampener, compress the valve springs using the J 5892-D (1) and the EN-47823 (2).
Notice: Do not damage the valve guide. Remove any burrs that have formed at the key groove by chamfering the valve stem with an oil stone or a file.
Important: Ensure that the valve train components are marked, organized or sorted when disassembling the cylinder head. Install the valve train components in the original location from which the component were removed.
4. Remove the valve spring cap keys.
5. Remove the valve spring caps.
6. Remove the valve spring assembly.
7. Remove the valves.
8. Remove the valve stem oil seals and spring seats as an assembly.
9. Inspect all valve components for any damage or excess wear. Repair or replace as necessary.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.